Use After Free in Google Android
CVE-2020-0423
In binder_release_work of binder.c, there is a possible use-after-free due to improper locking. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-161151868References: N/A
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (41.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 41.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Google Android
- Debian Linux — versions 9.0
- Android — versions Android kernel
Weakness classification (CWE)
Public proof-of-concept exploits
References
- source.android.com/security/bulletin/2020-10-01 (Vendor Advisory)
- lists.debian.org/debian-lts-announce/2020/12/msg00015.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-0423?
- CVE-2020-0423 is a high-severity vulnerability in Google Android, classified under Use After Free. CVSS score: 7.8/10. Published 2020-10-14.
- How severe is CVE-2020-0423?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2020-0423 known to be exploited?
- 26 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.